CVE-2026-23264

Kernel crash via global mixed-ASPM state

Published Mar 18, 2026 · Updated Mar 18, 2026

Denial of service in the Linux kernel AMDGPU driver allows local users to crash systems with two AMD GPUs and mixed ASPM support. During amdgpu_pci_probe, a global amdgpu_aspm setting is disabled after pcie_aspm_enabled checks one GPU, incorrectly applying that per-device result to both adapters. Reachability requires two AMD GPUs where only one supports ASPM; the reported consequence is a kernel crash, with no confidentiality or integrity impact.

CVSS severity5.5
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Linux kernel AMDGPU driver allows local users to crash systems with two AMD GPUs and mixed ASPM support. During amdgpu_pci_probe, a global amdgpu_aspm setting is disabled after pcie_aspm_enabled checks one GPU, incorrectly applying that per-device result to both adapters. Reachability requires two AMD GPUs where only one supports ASPM; the reported consequence is a kernel crash, with no confidentiality or integrity impact.

The record

CVE
CVE-2026-23264
Published
Mar 18, 2026
Updated
Mar 18, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0a9a60dcedaacde4b903337b7445cb431b4dd119
  2. Affected versionversion=0ab5d711ec74d9e60673900974806b7688857947 <243b467dea1735fed904c2e54d248a46fa417a2d
  3. Affected versionversion=0ab5d711ec74d9e60673900974806b7688857947 <5b794951541e84d2968980a68dd1ac38420f75f3
  4. Affected versionversion=0ab5d711ec74d9e60673900974806b7688857947 <5f645222eb30c91135119e12eccfd1b8ea88140e
  5. Affected versionversion=0ab5d711ec74d9e60673900974806b7688857947 <d2bddc2da2b3ba5d738877c476bf97932dba32e8
  6. Affected versionversion=0ab5d711ec74d9e60673900974806b7688857947 <f02c9052aaa031ef3c2285d86a155d4263180ddd
  7. Affected versionversion=5.18

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=0a9a60dcedaacde4b903337b7445cb431b4dd119; version=0ab5d711ec74d9e60673900974806b7688857947 <243b467dea1735fed904c2e54d248a46fa417a2d; version=0ab5d711ec74d9e60673900974806b7688857947 <5b794951541e84d2968980a68dd1ac38420f75f3; version=0ab5d711ec74d9e60673900974806b7688857947 <5f645222eb30c91135119e12eccfd1b8ea88140e; version=0ab5d711ec74d9e60673900974806b7688857947 <d2bddc2da2b3ba5d738877c476bf97932dba32e8; version=0ab5d711ec74d9e60673900974806b7688857947 <f02c9052aaa031ef3c2285d86a155d4263180ddd; version=5.18

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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